Decomposing of time series
- Decomposing of time series
The Decomposing of time series is a statistical method that deconstructs a time series into its components. It is an important technique for time series analysis, especially for seasonal adjustment. Monthly or quarterly economic time series are usually composed of:
**the Trend Component that reflects the long dated progression of the series
**the Cyclical Component that describes regular fluctuations caused by the economic cycle
**the Seasonal Component reflecting seasonal fluctuations
**the Irregular Component (or “noise”) that describes random, irregular influences. Compared to the other components it represents the residuals of the time series.
Statistical Software for decomposing is e.g. the program BV4.1 that bases on the so-called berlin procedure.
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